I had about the same thing. My prob was they took all my equipment and I have to start all over. If they turn black and going on 2 weeks then the are rotting. The cold place maybe too cold and the warm place maybe too warm. Sounds like you know what your doing though. You don't have anyone that wants you to stop growing do you ? I ask because I stored over 500 bucks worth of seed at a loved ones house when I got popped. Well my bro wanted to start new mothers and when I got the seed back I had the same problem. Before I wasted all of them I got some bagseed they didn't find out of a box in my closet that were ten years old and they popped no prob. Come to find out someone told the loved one that wishes me to stop the seeds were there and they microwaved my seeds for a few seconds. I got one big bud seeds to pop out of all of them it turned male and I mixed it with Hawaii x skunk so now it's big bud x hawaii x skunk. Bro's growing the mother and I started a seed bank for myself.

Try again with bagseed just to make sure your technique is good. I know losing fem seed is like losing a child. You don't know how old yours were but 10 year old bagseed pops. Think about what they go through out side all winter.

Mine is also a tale of sorrow but it can get better. Keep trying.